Creating date Table And calculated columns.

To create table please follow the step

a. Select Modeling and New Table and rename to Date

b. Go to model and make a relationship with the main table

Date = CALENDARAUTO()

Then create calculated columns for the Decade

To create calculated column

a. go on filed and right click on date make selection on NEW column and then rename the column to decade

after this please follow gif to see how to create relationship